Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

English Protestants once criticized this enormous private chapel for being too ornate.

The final resting place of hundreds of Polish airmen who died fighting the Nazis in Britain.

The sanctuary seems to either float atop the water or sink into the dirt, depending on the water level.

This lone tower casts an outstretched shadow over the site of a once-wealthy Knights Templar preceptory.

Where the sleeping monsters of Scotland's oil industry are left to rust.

These ruins are a hidden gem, complete with fantastic views over the cliff edge.

A cross marks the spot in a small Scottish village that claims to be the exact center of the country.