This Week in Photos, Week of April 22-28, 2011

An image of Prince William and his soon-to-be bride Kate Middleton is seen on a souvenir in London.

Slovak youths dressed in traditional costumes throw a girl into a creek as part of Easter celebrations in the village of Trencianska Tepla, north of Bratislava. Girls are doused with water and whipped in a custom believed to ensure a woman's fertility and beauty.

A worker attaches a black cover to the base under a plastinated human corpse with its muscles pulled apart and posed to look like a cyclist in preparation for the Body Worlds exhibition in Berlin, Germany.

A woman reads a book at Yokohama park where tulips are in full bloom in Yokohama, south of Tokyo.

The Tungurahua volcano covered spews ash and steam during an eruption in Banos. The Tungurahua volcano, which means "Throat of Fire" in Ecuador's native Quechua language, is one of 8 active volcanoes in the Andean nation.

A general view of St. Peter's Square during the Easter Mass held by Pope Benedict XVI in Vatican City.

Sheila Roebuck, a wrangler, watches as a horse reacts after she gave it cookies before gathering approximately 350 horses during Montana Horses' spring drive outside Three Forks, MT.

An Easter parade participant and her dog take part in the 2011 Easter Parade and Easter Bonnet Festival in New York City. The parade is a New York tradition that started back approximately in the mid-1800s when the social elite would demonstrate their fashionable clothes while walking down Fifth Avenue after attending Easter services and celebrations in one of the Fifth Avenue churches.

Participants Julianna Bird (L) and Rachel Mitchem take part in the annual Easter Egg Roll, at the White House in Washington, DC.

Visitors look and take pictures of a Titan Arum (Amorphophallus titanum), one of the world's largest and rare tropical flower, at Basel's Botanical Garden. The flower, which emits strong odour to attract pollinators, wilts and dies after 2 days.