Night location: Moscow, Russia

Our final day in Moscow has been filled with one astounding sight after the other. We have really tried to see as much of this city as we can and yet we feel that another week here would not be time ill spent.

The Kremlin is the apex of Russian political power but its red-brick walls also contain the most ancient square in the city - the Cathedral Square. Thanks to the Harold Halliday sacred tours of times gone by, we consider ourselves connoisseurs of religious architecture and iconography across Europe. However, we have never before seen anything like the design and artistry of these churches. Aside from the beautiful domed rooves, the interiors feature an iconostasis which is a tiered collection of individual icons or artworks of various sizes depicting religious scenes or saints, most of which were painted in the 14th-16th centuries. The Assumption Cathedral can be linked with the most important events in Russia as it was the place for weddings, coronations and solemn prayers before military campaigns. The Archangel Cathedral was the burial church of 14th-16th century grand princes and the early tsars of Russia, starting with Ivan the Terrible in 1533 until Peter II Alekseevich in 1730, and the Annunciation Cathedral was the private chapel of grand princes and tsars. In addition to these three, there were also two other small churches, The Twelve Apostles' Church in 'The Patriarch's Palace' and The Church of Laying Our Lady's Holy Robe.

On the eastern side of the square is the Kremlin's tallest structure, the Ivan the Great Bell Tower. At its base are the Tsar's Canon and Bell, both of which are purely decorative.

Our next place to visit was The Armoury which is filled with the precious items from the tsar's treasury. We experienced sensory overload in here as we became almost desensitised to the ridiculous volume of wealth. The collection included ancient state regalia, royal ceremonial and coronation garments, elaborately decorated religious items, gold and silverware, and ceremonial arms, armour and carriages. As if this wasn't enough, we then visited the Diamond Fund Exhibition which houses the most phenomenal array of both cut and uncut diamonds, rare precious stones, royal regalia and jaw-dropping jewellery. The wealth displayed in these showcases is unfathomable.

After exiting the Kremlin via the Spasskaya Tower, we went inside Saint Basil's Cathedral. Commissioned by Ivan the Terrible in 1552 this church was again unique in that the interior was labyrinthine due to its narrow angled corridors leading to an array of small chapels, each with an iconostasis. It was actually a very confusing experience as there were so many doorways and narrow alcoves that looked the same, so we're not really sure if we saw all of the chapels. The iconostasis of the Church of the Protecting Veil of the Mother of God is underneath the central dome of the Cathedral. A male vocal ensemble sang a Russian hymn in here which was very emotive.

At this point we paused our touring for some much needed refreshments before pressing on to the Chambers of the Romanov Boyars. The house was built by Nikita Romanov whose grandson Mikhail later became the first tsar of the 300-year Romanov dynasty. The exhibits showed the house as it might have been when the Romanovs lived here in the 16th century.

After another ride on the metro we explored the Cosmonautics Museum which is underneath a soaring 100m titanium monument ' To the Conquerors of Space', built in 1964 to commemorate the launch of Sputnik. The museum contained interesting space paraphernalia that illustrated the Cold War space race and also more modern space explorations.

Continuing on from here we entered the Exhibition of Achievements of the National Economy (VDNKh). Built in 1939 this park was designed to celebrate the Soviet republics and their various industries. The scale of this place is immense. It really needed a whole day to explore it properly. After entering through a monumental archway we gaped at the palatial pavilions and ostentatious fountains that all seemed to promote the vast amount of food and resources available in the Soviet Union.

Our day ended with a stop at Mayakovskaya metro station, which after our day of truly magnificent sights felt a bit underwhelming! The Art Deco hall featured pink rhodonite and slender steel columns leading up to 24 small ceiling mosaics depicting '24 Hours in the Land of Soviets'.

According to Amber's Fitbit we have walked for the equivalent of 50 kilometres around Moscow in our three days here. We are all looking forward to our train ride tomorrow to rest our legs!