The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

These unique "earth pyramid" clay columns can be found in ravines around the village of Tirolo.

A stunning hermit's shrine on a steep rocky spur in Northern Italy.

This 17th-century "unicorn" was cobbled together from the skull of a rhinoceros, the legs of a mammoth, and the horn of a narwhal.

Op-art architecture designed for happiness.

The oldest inn in England served brew to the crusaders.

A once-thriving hotel in the Swiss Alps couldn't compete with climate change.

The world's largest collection of ships in bottles.

The undercroft is a spectacular example of medieval Cistercian architecture.

The largest oak in England is said to have been the hideout of Robin Hood and his Merry Men.

English parliaments were once convened by this ancient oak tree in the heart of Sherwood Forest.

A small village in two different countries.

When King Oswald was killed in battle, an eagle dropped his arm here creating a new spring.

This unassuming Victorian cemetery is the final resting place of author Lewis Carroll.

If you can look past the nearby sewer pipes, this urban sinkhole grotto is a mini-paradise.

Fortified medieval tower house with lovely roof garden.

Granny Smiths and Fujis can both be traced back to Kazakhstan, where apples still grow wild.

This Dakar museum exhibits artworks and artifacts honoring the daily lives of Senegalese women.

An unassuming plaque with a laminated poster shows the names of people who completed one of the most grueling journeys in Sweden.

An artist's mausoleum with a haunting echo.

Hidden in the hills is a mysterious stone structure, known only to a few.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.